I'm sorry but you're just in denial. There's no doubt that the peak is in the 30s. Even late 20s it's starting to slow down, it's just that the amount you can learn and experience in the 30s you get further, but once you are in your 40s the decline surpasses it.
NL,the only popular Texas Holdem variant is far from being solved with 100 big blinds+ (the normal buyin). If that was the case then we would see bots at the higher levels. It might happen one day, but then we will know within days because someone eventually will get too greedy. That said, at micro limits ($10 buy in etc.) there are bots that can make a small profit, and from time to time poker companies ban these and freeze the money. Even Dropbox CEO claims to have made a breakeven bot.
I've done this online for a long time. I.e you start a forum thread but dont get any replies. Make a 2nd account replying a silly answer that is wrong - experts suddenly appear.